(134340) Pluto
ephemeris date magn radius delta ra dec elong phase
Opposition24 Jul 202514.935.311 AU34.297 AU20h21m-23°18'176.2°0.1°
Today31 Aug 202515.135.337 AU34.517 AU20h18m-23°31'143.8°1.0°
(134340) Pluto - 2025-08-31
astro.vanbuitenen.nl


 
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The interactive orbit chart above shows the body's path through the solar system and its position at the given date. Green and blue lines are shown perpendicular to the ecliptic plane: Green if the path is above the ecliptic plane, blue if it is below. (Left-click and drag to rotate the view; Right-click and drag to move the view; Use scroll wheel to zoom in our out.)

The orbital elements of Pluto are:

            e (Eccentricity)                : 0.2467311
            a (Semimajor axis)              : 39.3621661
            i (Inclination)                 : 17.17189
            Ω (Longitude of ascending node) : 110.33332
            ω (Argument of perihelion)      : 113.37790
            M (Mean anomaly)                : 52.17716
            Epoch                           : 2025 May 05

            L (Longitude of perihelion)     : 44.67767
            B (Latitude of perihelion)      : 15.72393
            P (Orbital period in years)     : 246.96            
        

The light curve chart below shows the estimated development of the minor planet's magnitude.


The all-sky chart below shows the path of the minor planet over the same period as the light curve. The current position is marked yellow.





The following chart shows the path of the minor planet in the next few days. The field of view is optimized for (~10x50) binoculars and finderscopes. A more printer-friendly version of the same chart can be found below.




Ephemerides:
Date       Time       RA (2000)    DEC (2000)    delta   radius  elong  phase   PA    magn
2025-08-31 00:00 UT   20 18 18.1   -23 31 42    34.517   35.337  143.8    1.0    72   15.1 
2025-08-31 20:50 UT   20 18 14.2   -23 31 56    34.527   35.337  142.9    1.0    72   15.1 
2025-09-01 00:00 UT   20 18 13.6   -23 31 58    34.528   35.337  142.8    1.0    72   15.1 
2025-09-02 00:00 UT   20 18 09.2   -23 32 13    34.540   35.338  141.8    1.0    72   15.1 
2025-09-03 00:00 UT   20 18 04.8   -23 32 28    34.551   35.339  140.8    1.0    72   15.1 
2025-09-04 00:00 UT   20 18 00.5   -23 32 42    34.563   35.339  139.8    1.1    72   15.1 
2025-09-05 00:00 UT   20 17 56.4   -23 32 56    34.575   35.340  138.9    1.1    73   15.1 
2025-09-06 00:00 UT   20 17 52.2   -23 33 10    34.587   35.341  137.9    1.1    73   15.1 
2025-09-07 00:00 UT   20 17 48.2   -23 33 23    34.599   35.342  136.9    1.1    73   15.1 
2025-09-08 00:00 UT   20 17 44.3   -23 33 36    34.612   35.342  135.9    1.1    73   15.1 
2025-09-09 00:00 UT   20 17 40.4   -23 33 49    34.624   35.343  134.9    1.2    73   15.1 
2025-09-10 00:00 UT   20 17 36.6   -23 34 01    34.637   35.344  133.9    1.2    73   15.1 
2025-09-11 00:00 UT   20 17 32.9   -23 34 13    34.650   35.344  133.0    1.2    73   15.1 
2025-09-12 00:00 UT   20 17 29.3   -23 34 24    34.664   35.345  132.0    1.2    74   15.1 
2025-09-13 00:00 UT   20 17 25.8   -23 34 36    34.677   35.346  131.0    1.2    74   15.1 
2025-09-14 00:00 UT   20 17 22.4   -23 34 46    34.691   35.346  130.0    1.2    74   15.1 
2025-09-15 00:00 UT   20 17 19.1   -23 34 57    34.705   35.347  129.0    1.3    74   15.1 
2025-09-16 00:00 UT   20 17 15.9   -23 35 07    34.719   35.348  128.0    1.3    74   15.1 
2025-09-17 00:00 UT   20 17 12.8   -23 35 16    34.733   35.348  127.1    1.3    74   15.1 
2025-09-18 00:00 UT   20 17 09.8   -23 35 26    34.748   35.349  126.1    1.3    74   15.1 
2025-09-19 00:00 UT   20 17 06.8   -23 35 34    34.762   35.350  125.1    1.3    74   15.1 
2025-09-20 00:00 UT   20 17 04.0   -23 35 43    34.777   35.350  124.1    1.3    74   15.1 
2025-09-21 00:00 UT   20 17 01.3   -23 35 51    34.792   35.351  123.1    1.4    75   15.1 
2025-09-22 00:00 UT   20 16 58.7   -23 35 58    34.807   35.352  122.1    1.4    75   15.1 
2025-09-23 00:00 UT   20 16 56.2   -23 36 06    34.823   35.353  121.2    1.4    75   15.1 
2025-09-24 00:00 UT   20 16 53.8   -23 36 12    34.838   35.353  120.2    1.4    75   15.1 
2025-09-25 00:00 UT   20 16 51.5   -23 36 19    34.854   35.354  119.2    1.4    75   15.1 
2025-09-26 00:00 UT   20 16 49.3   -23 36 25    34.870   35.355  118.2    1.4    75   15.1 
2025-09-27 00:00 UT   20 16 47.3   -23 36 30    34.885   35.355  117.2    1.4    75   15.1 
2025-09-28 00:00 UT   20 16 45.3   -23 36 36    34.902   35.356  116.2    1.5    75   15.1 
2025-09-29 00:00 UT   20 16 43.5   -23 36 40    34.918   35.357  115.2    1.5    75   15.1 
2025-09-30 00:00 UT   20 16 41.7   -23 36 45    34.934   35.357  114.3    1.5    75   15.1 


    Terminology:
            
    delta:  distance between minor planet and earth in AU
    radius: distance between minor planet and sun in AU
    magn:   magnitude (brightness) estimate    
    ra:     right ascension in hours (24h = 360deg)
    dec:    declination in degrees
    elong:  elongation in degrees (angle sun-earth-minor planet)    
    phase:  phase angle in degrees (angle sun-minor planet-earth)        
    AU:     Astronomical Unit (mean distance between earth and sun: 149597870.7 km
    

Orbital elements provided by the MPC (Minor Planet Center).
Calculations by a modified version of AAPlus, a C# implementation of the AA+ project by PJ Naughter from the algorithms presented in the book "Astronomical Algorithms" by Jean Meeus.
NGC2000 dso catalog and star labels from VizieR as provided by the Strasbourg astronomical Data Center.
Tycho2 catalog from the ESO archive.